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Smt 'pick and place' machine issues

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#45736

Smt 'pick and place' machine issues | 29 November, 2006

Hello everyone, I've been facing some issues regarding:-

1)missing components 2)overturn 3)misalignments

Why does this occur?Is it because of the machines?The programming?Or handling issues? What steps are needed to be taken to counter this problem?

The machines used are -mv2f -msf

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Guess

#45739

Smt 'pick and place' machine issues | 29 November, 2006

I would suggest checking the feeder, MVF and MSR are both turret type and dont have the capability auto pik adjust in y. Y offset pick up would lead to : 1. Over turn component. 2. Missing component. Turret sequence is pick, recognize angle rotate and mount . Offset pick up result to weaker vacumm, there is a high chance that the component fall during angle rotate . Machine will proceed mounting the component even without the component. This results clogged nozzle and this clogged / dirt will be mistakenly to a component during recognition

Do you see fall out components in the camera , in the table ? conveyor? Calibrate feeder in y position.

Other cause of overturn component is wrong feeder type. Example is using emboss type for paper .

For MSR ,this is my first to hear missing and overturn component . What component type you are mounting on this machine.

Hope this would help.

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#45741

Smt 'pick and place' machine issues | 29 November, 2006

I would hope you have already done this but in case you haven't I would suggest a career change..........determine which machine is causing the problem and then do a PM on it.

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#45742

Smt 'pick and place' machine issues | 29 November, 2006

Guess- If a component drops at the camera the machine will not proceed to attempt to place it and drive the nozzle into a brick of solder paste. The line sensor will catch the fact there is no component on the nozzle and will retry to pick and place.

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aj

#45748

Smt 'pick and place' machine issues | 29 November, 2006

Hi,

I work mainly with Fujis but have some experience with Panas.

If you are seeing components upside down on the board it is feeder related . If you are seeing poor alignment across the board , firstly I would check the xy table for alignment. Make sure the adjustable rail is positioned securely and there is no movement when PCB is clamped.

If this is a Product that you run regularly without problems then something is wrong with the machine not the program.

Of course there are various setups that you can check but I would say it is something straigh forward.

Let us know how u get on.

aj...

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aj

#45749

Smt 'pick and place' machine issues | 29 November, 2006

Does the Board need supports ????

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#45757

Smt 'pick and place' machine issues | 29 November, 2006

That, and is it pinned or clamped, and if the latter, are the edges true?

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